Table 4. Patient Outcomes by Emergency Status.
| Variable | No. (%) | P value | |
|---|---|---|---|
| Emergency surgery (n = 183 099) | Elective surgery (n = 421 438) | ||
| VTE | 3443 (1.9) | 3181 (0.8) | <.001 |
| DVT or thrombophlebitis | 2562 (1.4) | 2045 (0.5) | <.001 |
| PE | 1190 (0.6) | 1458 (0.3) | <.001 |
| Time to diagnosis of DVT, mean (SD), d | 10.7 (7.8) | 12.1 (7.8) | <.001 |
| Time to diagnosis of PE, mean (SD), d | 10.4 (7.9) | 10.2 (7.8) | .63 |
| Surgical site infections | 9758 (5.3) | 15 121 (3.6) | <.001 |
| General complications No./total No. (%)a | 37 068/91 983 (40.3) | 39 960/193 368 (20.7) | <.001 |
| Major complications | 25 812 (14.1) | 15 517 (3.7) | <.001 |
| Reoperation | 8394 (4.6) | 10 379 (2.5) | <.001 |
| 30-d Readmission | 16 015 (8.7) | 25 407 (6.0) | <.001 |
| Hospital length of stay, mean (SD), d | 2.4 (7.1) | 2.9 (5.8) | <.001 |
| 30-d Mortality | 6601 (3.6) | 1842 (0.4) | <.001 |
Abbreviations: DVT, deep vein thrombosis; PE, pulmonary embolism; VTE, venous thromboembolism.
a
Information not available on all patients; percentages were calculated based on data available.